Road-grader moldboard control



March 23, 1937. 1A M. WELLS 2,074,601

i ROAD GRADER MOLDBOARD CONTROL MEANS I Filed Nov; 25, 1954 Y 2Shets-Sheet 1 March 23, 1937. 1. WELLS I ROAD GRADER MOLDBOARD CONTROLMEANS Filed Nov. 2:5, 1934 2 Sheets-Sheet 2 INVENTOR r lra M. We;

v ATTdRNEY Patented Mar. 23, 1937 UNITED STATES PATENT OFFICE I2,074,001 ROAD-GRADER MOLDBOABD coN'rnoL MEANS Ira M. W l Oakland,Calif. Application November 2:, 1934, Serial No. 154,502

4 Claims. (01. 87-156) The invention relates to road graders and moretaken substantially on the plane of the lines 4-4 particularly to themoldboard mounting'and adn Hor sp eflvely of Fi ure lusting meanstherefor. Referring more particularly to the, drawings, An object oi theinvention is to provide in comthe control 111881181 my vention is shownin bination with a moldboard a means permitting connection with e grader1 ine idmz. a wheel 5 the operator to shirt the board sidewisc without pt d frame or assis I. s ll p w r y a requiring m t leave his station to11th. motor I. and'a moldboar'd or blade ll. As will draw his attentionfrom the other operating conof 00W be the k rehgrader combinauk tlon iswell known-in the art and I may. in prac- Another object oi theinventionis to provide a @1118 my invention adapt th m to all t pesmeans or the character described which while of mders merdless ofwhether the same be mummy wntmued m be power operated self-powered ordrawn by auxiliary equipment'or whereby the operator may with ease andfacility upmmd miwement Wheels, otherwise. 1 causethc sidewise movementoi the relatively long I the type We! 111mm!- flle moldand heavymoldboard into a wide range orusem is h by a mud? frame 1903mm i2 whichmay be pivotally secured at its ends A further object oi the inventionis to provide the min frame es to Permit turning a control means of thecharacter described which the normally maybe operated during the courseof movement hmmhm and hem shown- 2o oi the grader to nirord during theside-wise moveit is custom to PM the moldboerdm 2 ment oi the moldboardfor a continuous operation the frame by m of 5 3 called circle 0! thegrader and to provide in this manner for mg which Permits or turning hmoldboal'd acompound forward and sidewlse grading action W Positions 5W081 and for the uniiorm diagonal movement of mamwnflng the Presentterial rroin one side of the grader, ahead and mpflses a circular1101151118 secured to the 25 to t other side f the mden frame I! and inwhich is mounted for rotation Still a further object of the invention isto a Secured at diametrically spaced provide a revolvable moldboandsupport perthe ring a P 01 dependinitting oi the ready turning of themoldboard 1118' Supporting m mwn 8 1? in the so to face in oppositedirections with respect to the m as m horm- Which are in turn secured atline of travel of the grader whereby acontinuous h lower ends to them1dhard cause the grading operation may beetrected on the iorward lattermether with the 11118 8 and return travel of the grader over a codrsehhitmtathm o! the and attahhed without requiring the turning about ofthe grader Ward is d to be effected from the drivers 5 an end r themu-5a station it of the grader through an actuating 35 The inventionpossesses other objects and tea.- mechanism mum Pmmn mount/ed on turesof advantage. some of which, with the the frame surin the gear I! andforegoing, will be set forth in the following dewhich is connected byauxiliary gears and scrlption of the preferred form oi the invention 22a shaft wh1h m tum 15 hated by a 40 which is llustrated in the drawingsaccompanyhand wheel the W station- 40 ing and forming part of thespecification. It is My invention 15 med la-M1011 a to be understood,however, that variations in having the general comhlhatmh 0! the showingmade by the said drawings and dements above and mm particularly to the mu may be adopted within the scope of mounting connection oi! themoldboard with its the invention set forth in the charm support. Whilein the present disclosure I have 45 we 1 side View of a grader with theshown the moldboard supported by the arms I8, means of my inventionincorporated thereon. it Wm i g Imountmg ar- Figure 2 is a; plan view ofthe moldboard and fi a tgonnecuon of the mounting assembly therefor ofthe grader shown me or be ,0 the mo l t lb o zld is t i vi geii at thirear 52 c Figure 8 is a sectional view of the assembly m; mm a m oflongitudinally spaced rods shown in Figure 2 and is taken substantiallyon 21 which are an m parallel relati to th 1 the plane or the line 3-:oi Figure 2 a on e v gitudinal center line oi. the moldboard in brack- 5Figures 4 and 5 are vertical sectional views ets 18 and slidably mountedin openings pro- 55 vided through the lower ends oi the arms [8. In thismanner the moldboard is mounted ior longitudinal movement relative tothe arms ll andthecirclesupportandispermittedtomove s irom a centerpositionto either side oi the control is capability thereoi oieilfecting timesidewl'semovementoithe'moidboard dtn'ingthe.icrwardmovementoithegnderwithout'in'ahg.

5 way interiering with the continuity oi the grading operationandproviding in addition ioran movement oithemoldboarmsswiilbereadilywisaresultoithenoia iorward movernent-oithe grader and'asimulatsubstantifllyrightanglestotheaioressid ehangingthegradenaieaturewhichtoourknowlcdgehad been -le oi attainment with gradersoi witii'therodsasaoentertopositlontherearispossibletomovebodiiydisposed positions with respect to the line ofmovement of the grader. Since the extent oi revolution oi the moldboardis through but substantiaily 180, it will be understood and as clearlyrepresented in Figure 4, the longitudinal edges 42 and 43 oi themoldboard are in thereversed positions oi the moldboard also reversed asto top and bottom positioning. For this reason and in order that themoldboard will be equally eiiective in, both positions thereoi. I preferto provide each oi the edges 42 and 43 with sharpened ground as blades44 which as m the present case, may be removabiy secured to themoldboard by means oi bolts 46.

Means are also provided ior adiustably holding the moldboard in eitheroi its revolved positions and here comprise a pair oi bars 41 ilxedlysecured to therlng gear "and positioned tooverllei'nparalleirelationtheupperedgesoithe moldboard in its forwardlyand rearwardly turned positions. Mounted on the bars 41 are pairs oispring detent members 48 and 4! which extend irom one bar to adjacentthe other where they are provided. with downwardly extending hook Thuswith the moldboard mounting oi my ina oiimportanoaaswillbereadllyundehsntzdwheregradingareiativelynarrowcourse in the mountains or otherplaces. is where turning; aroimd oi the apat the end oi the course maybe imposble 0 dangerous.

I claim: 1. In a grader. a irame supported for movement. .a-memberpivotally secured thereto ior rotation in a substantially' horizontalplane, a moldhoard siidably mounted for endwise displacement on saidmember and generally acrom the line oi movement oi said grader. and ailuid pressure expanding means interconnecting said member and moidboardior causing said displacement oi the moldboard during the movement oithe grader to eiiect a continuous and uniiormdiagonal movement oi'saidmoldboard relative to the line oi movement oi the grader.

2. In a grader. s. irame supported ior movement and provided with adriver's station, a

- member rotatabiy carried by said frame ior rotation in a substantiallyhorizontal plane, a moidboard slidably mounted ior endwise displacementon said member, power operated means for causing a uniiorm longitudinalmovement oi said mqldboard generally across the line oi movement oi thegrader to produce a diagonal movement oi said moldboard relative to saidline oi movement. and mean positioned at said driver's station ior.controlling'the energizing oi said power operated means, and regulatingthe amountand angularly oi said diagonal movement.- v

8. A grader comprising. a movable irame, a circle support securedthereto. a pair oi memberssecuredtoanddependingiromsaidcircle film. amoldboard, longitudinal guide means v 2,074,001 r d 3 on said moldhoardsiidably and rotatably secured board for holding the same in either orthe reto said members for rotatabiy moving said moldversed positionsthereof. board with said circle support and permitting 4. Amadgradercomp i in nf m Supported longitudinal Shifting of the moidboard relativefor movement l! M a circle support tion of the moldboard along ahorizontal axis longitudinally of the moldboard to reverse thefaemounted for displacement on said ing thereof, a pair of spaced barscarried by said cle support m mm providing a continuous o circle supportin generally spaced parallel relagenera" tion over the upper edges orthe moldboard in the reversed positions thereof, spring detent of toproduce a continuous and mom diagonal members each secured at an end.toone of said mvement of am mambo-rd relative to the li e bars andextended in the direction 01 the other r m t g t m 15 bar for engagementwith an edge 01' said mold- IRA M. 16

1 y across the line of movement or said 10 DISCLAIMER 2,074,601.Ira M.Wells, Oakland, Calif. ROAD-GRADER MOLDBOARD CONTROL MEANS. Patent datedMarch 23, 193 Disclaimer filed December 11, 1941, by the assignee,Western-Austin Oompa'n Hereby enters this disclaimer'to claim 4 in saidspecification.

[Qflicial Gazette January 6, 1942.]

v 2,074,001 r d 3 on said moldhoard siidably and rotatably secured boardfor holding the same in either or the reto said members for rotatabiymoving said moldversed positions thereof. board with said circle supportand permitting 4. Amadgrader comp i in nf m Supported longitudinalShifting of the moidboard relative for movement l! M a circle supporttion of the moldboard along a horizontal axis longitudinally of themoldboard to reverse the faemounted for displacement on said ingthereof, a pair of spaced bars carried by said cle support m mmproviding a continuous o circle support in generally spaced parallelrelagenera" tion over the upper edges or the moldboard in the reversedpositions thereof, spring detent of to produce a continuous and momdiagonal members each secured at an end.to one of said mvement of ammambo-rd relative to the li e bars and extended in the direction 01 theother r m t g t m 15 bar for engagement with an edge 01' said mold- IRAM. 16

1 y across the line of movement or said 10 DISCLAIMER 2,074,601.Ira M.Wells, Oakland, Calif. ROAD-GRADER MOLDBOARD CONTROL MEANS. Patent datedMarch 23, 193 Disclaimer filed December 11, 1941, by the assignee,Western-Austin Oompa'n Hereby enters this disclaimer'to claim 4 in saidspecification.

[Qflicial Gazette January 6, 1942.]

